Exercises - I — task. Science State Board, Class 9.

PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

Book Free Demo

Rubbing a comb on hair makes the comb get $–$ 0.4 $C$ .

a. Find which material has lost electron and which one gained it.

The material which lost the electron is and the material which gained the electron is .

b. Find how many electrons are transferred in this process.

[Note: Calculate in terms of seconds and enter the final answer up to one decimal place by rounding off the second decimal value.]

$e = i \times 10^{i} C$

The number of electrons in

$1$ coulomb of charge is given by the formula

$\begin{array}{l} n = \frac{i}{i} \\ = \frac{i}{i \times 10^{i}} \\ = i \times 10^{i} electrons \end{array}$

No. of electrons transferred

$=$

$\times 10^{18} electrons$

$1$

Did you find an error?

9. Exercises - I